CN107145213A - A kind of device and method being multiplexed for PCH MEdebug and USB port - Google Patents
A kind of device and method being multiplexed for PCH MEdebug and USB port Download PDFInfo
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- CN107145213A CN107145213A CN201710267074.5A CN201710267074A CN107145213A CN 107145213 A CN107145213 A CN 107145213A CN 201710267074 A CN201710267074 A CN 201710267074A CN 107145213 A CN107145213 A CN 107145213A
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- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 30
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 238000013459 approach Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention is provided to the device and method that PCH ME debug and USB port in Purley Platform Server systems are multiplexed, by the selector of an alternative, ME debug I2C signals and the signals of USB 2.0 are connected to the USB port in the external world.The function select signal of this selector is connected to BMC, and the function of acquiescence is set to USB2.0, when we need debug ME, changes the state that function selects pin by BMC, realizes the switching of signal.External USB port functions are not only taken full advantage of, while can be after later stage machine is completed, the quick and easy function of realizing ME debug.
Description
Technical field
It is used for PCH in Purley Platform Server systems the present invention relates to management engine technical field, more particularly to one kind
The device and method of ME debug and USB port multiplexings.
Background technology
Server system is played an important role in the various aspects of society in recent years, and nearly all and our lives are stopped
Relative related aspect has the presence of server.And as server system disposes sharply increasing for quantity, the energy consumption brought is asked
Topic is just especially prominent.The increase of server energy consumption is mainly reflected in following aspects：It is CPU first, with CPU manufacture work
Skill is constantly lifted, frequency more and more higher, and while its computing capability is rapidly lifted, its power consumption equally increases surprising；Next to that
Internal memory, with the improvement of manufacturing process, memory size is increasing, and speed is more and more faster；It is chipset and ancillary equipment again,
Because CPU and clocked memory are improved constantly, it is desirable to and chipset, bus and the ancillary equipment that they coordinate are required for being operated in more
High frequency, and higher frequency means more power consumptions；Fourth aspect is the energy consumption that computer room freezes with power supply unit,
Because server system is very sensitive to high temperature, therefore computer room must configure substantial amounts of radiating and cooling device, and computer room is supplied
Electric equipment can lose part electric energy when voltage conversion.Therefore, current energy-saving consumption-reducing is gradually into the pass of server technology
Keyword, and as a major issue of influence server development.
Existing many computer motherboards all support ME (Management Engine, management engine) function, management engine
It is the technology that a kind of various functions enabled or disabled on computer and the power supply to computer motherboard are configured, by right
ME carries out debug to control CPU power consumption, control power consumption of internal memory and control platform power consumption etc..
PCH ME debug method is in plate plus 3pin row's pins in the prior art, such design lacks flexibility,
If still wanting to realize this function after machine is completed, it is necessary to dismantle board, cause the waste of man power and material, have
Certain limitation.
The content of the invention
In order to solve the above technical problems, the present invention proposes PCH ME debug in a kind of Purley Platform Servers system
The device and method being multiplexed with USB port.
In a first aspect, the present invention provides a kind of for PCH ME debug and USB in Purley Platform Server systems
The device of port multiplexings, including PCH, alternative selector, USB, BMC, wherein PCH are connected with alternative selector, alternative
Selector is connected with USB, is transmitted I2C signals or the signals of USB 2.0 between PCH and USB by alternative selector,
BMC is connected with alternative selector, and USB port function is controlled by controlling alternative selector.
Further, the speed that alternative selector is supported meets USB2.0 and I2C semaphore requests.
Further, BMC selects pin state by changing alternative selector function, to control USB port work(
Energy.
Further, alternative selector is by the first alternative selector MUX1 and the second alternative selector MUX2 structures
Into the first alternative selector MUX1 input A is connected by I2C buses and PCH HOST_I2C_CLK interfaces, transmission
I2C_CLK signals, the first alternative selector MUX1 input B passes through USB USBs and PCH USB_DP interfaces
Connection, transmits USB_DP signals, and the second alternative selector MUX2 input A passes through I2C buses and PCH HOST_I2C_
DATA interfaces are connected, and transmit I2C_DATA signals, and the second alternative selector MUX2 input B is total by USB general serials
Line and PCH USB_DN interfaces connection, transmit USB_DN signals, the first alternative selector MUX1 and the second alternative selector
MUX2 control end S connects BMC GPIO interface respectively, to receive the selection control signal that BMC is sent, the first alternative selector
MUX1 output end Y-direction USB transmission I2C_CLK or USB_DP signals, the second alternative selector MUX2 output end Y-direction USB
Transmit I2C_DATA or USB_DN signals.
Further, write from memory for the device that PCH ME debug and USB port in Purley Platform Server systems are multiplexed
The function of recognizing is USB2.0, when debug ME are needed, and changes the state that function selects pin by BMC, realizes signal
Switching.
Second aspect, the present invention provides PCH ME debug and USB port in a kind of Purley Platform Servers system and answered
Method, it is characterised in that comprise the following steps：
SS1：Increase alternative selector between PCH and USB, by alternative selector by I2C signals or USB 2.0
Signal is transmitted between PCH and USB；
SS2：BMC selects pin state by changing alternative selector function, to control USB port function.
Further, the speed that alternative selector is supported will meet the requirement of USB2.0 and I2C signals.
Further, the function of acquiescence is USB2.0, when debug ME are needed, and changing function by BMC selects
Pin state, realizes the switching of signal.
A kind of method for being capable of simple and fast debug ME is proposed by the present invention, it is possible to reduce later stage dismounting board is caused
Work load.
Brief description of the drawings
Fig. 1 shows that the present invention's is used for what PCH ME debug and USB port in Purley Platform Server systems were multiplexed
Device block diagram.
Fig. 2 shows the multiplexer detail view of the present invention.
Fig. 3 shows alternative selector logical circuitry of the present invention.
Embodiment
Technical scheme is further illustrated below in conjunction with Figure of description and specific embodiment.It should be appreciated that this
The specific embodiment of place description is not intended to limit the present invention only to explain the present invention.
The newest PCH released for Purley platforms LBG (Lewiburg) series of Intel are used herein.The series
PCH is compared with traditional PCH, the characteristics of adding a lot：
1st, 16 groups of PCIE and 8 group of optional PCIE has been interconnected more with CPU, to realize the 10G network functions and QAT of itself
(Quick Assist Technology)；
2nd, the High-speed I/O of itself can also can be allocated with flexible configuration, GPIO control by ME；
3rd, itself can be used as CLK GEN etc..
Intel LBG PCH have one group of HOST I2C, PCH can be configured to by this group of I2C MASTER or
SLAVE patterns.When PCH is as SLAVE equipment, can be debugged by external instrument PCH ME FW (firmware, Gu
Part).Selector of this group of I2C signal and USB 2.0 signal by an alternative is connected to USB port, work(by us
The signal that can be selected is connected to BMC, realizes that BMC controls this USB port function.
Fig. 1 shows that the present invention's is used for what PCH ME debug and USB port in Purley Platform Server systems were multiplexed
Device block diagram.
As shown in figure 1, the device being multiplexed for PCH ME debug and USB port in Purley Platform Server systems,
Including PCH (Platform Controller Hub, south bridge), alternative selector, USB, BMC (Baseboard
Management Controller, baseboard management controller), wherein PCH is connected with alternative selector, alternative selector
It is connected, is transmitted I2C signals or USB2.0 signals between PCH and USB by alternative selector, BMC and two with USB
Select a selector to connect, USB port function is controlled by controlling alternative selector.
According to one embodiment of the invention, BMC needs that the state that function selects pin can be changed.
Fig. 2 shows the multiplexer detail view of the present invention.
As shown in Fig. 2 alternative selector is by the first alternative selector MUX1 and the second alternative selector MUX2 structures
Into, wherein the first alternative selector MUX1 input A is connected by I2C buses and PCH HOST_I2C_CLK interfaces, biography
I2C_CLK signals are passed, the first alternative selector MUX1 input B is connect by the USB_DP of USB USBs and PCH
Mouth connection, transmits USB_DP signals, and the second alternative selector MUX2 input A passes through I2C buses and PCH HOST_
I2C_DATA interfaces are connected, and transmit I2C_DATA signals, and the second alternative selector MUX2 input B passes through the general strings of USB
Row bus and PCH USB_DN interfaces connection, transmit USB_DN signals, the first alternative selector MUX1 and the choosing of the second alternative
The control end S for selecting device MUX2 connects BMC GPIO interface respectively, to receive the selection control signal that BMC is sent, the choosing of the first alternative
Select device MUX1 output end Y-direction USB transmission I2C_CLK or USB_DP signals, the second alternative selector MUX2 output end Y-direction
USB transmits I2C_DATA or USB_DN signals.
According to one embodiment of the invention, the speed that alternative selector is supported will meet wanting for USB2.0 and I2C signals
Ask.
By the selector of an alternative, ME debug I2C signals and the signals of USB 2.0 are connected to the USB in the external world
port.The function select signal of this selector is connected to BMC, and the function of acquiescence is set to USB2.0, when we need debug ME
When, the state that function selects pin is changed by BMC, the switching of signal is realized.
Fig. 3 shows alternative selector logical circuitry of the present invention.
As shown in figure 3, alternative selector includes a NOT gate, two and door, an OR gate, wherein first and the one of door
Input for alternative selector input a, second with the input b of an input of door for alternative selector, second
Another input with door is the control end s of alternative selector, and the input of NOT gate terminates the control end s of alternative selector,
Output termination first and another input of door of NOT gate, first connects two of OR gate respectively with door, second with the output end of door
Input, the output end of OR gate is the output end y of alternative selector.
Alternative data selector logical expression is：
Truth table is as follows according to listed by logical expression
The present invention also provides the side that PCH ME debug and USB port are multiplexed in a kind of Purley Platform Servers system
Method, comprises the following steps：
SS1：Increase alternative selector between PCH and USB, by alternative selector by I2C signals or USB 2.0
Signal is transmitted between PCH and USB；
SS2：BMC selects pin state by changing alternative selector function, to control USB port function.
According to one embodiment of the invention, the speed that alternative selector is supported will meet wanting for USB2.0 and I2C signals
Ask.
According to one embodiment of the invention, the function of acquiescence is USB2.0, when debug ME are needed, passes through BMC
Change the state that function selects pin, realize the switching of signal.
External USB port functions are not only taken full advantage of by the solution of the present invention, while can be in later stage machine group
After the completion of dress, the quick and easy function of realizing ME debug.
In addition the present invention has advantages below：
1) USB port function is made full use of.
2) increase debug flexibility, debug can be realized without dismounting after machine is completed.
3) the later stage debug teardown of engine is reduced, the manpower and materials that board is caused are wasted.
Although in terms of having been described for some in the context of device, it is apparent that these aspects also illustrate that corresponding method
Description, wherein block or apparatus and method for step or the feature of method and step be corresponding.Similarly, in the context of method and step
Described in each side also illustrate that the description of corresponding piece or project or the feature of corresponding intrument.(or use) can be passed through
Hardware unit such as microprocessor, programmable calculator or electronic circuit etc is some or all of in method and step to perform.
Can be performed by such device in most important method and step some or it is multiple.
The realization can using hardware or using software or can use for example floppy disk, DVD, blue light, CD, ROM,
PROM, EPROM, EEPROM's or flash memory etc there is the stored digital for being stored in electronically readable control signal thereon to be situated between
Matter is performed, and the electronically readable control signal coordinates (or with it can coordinate) to perform with programmable computer system
Corresponding method.The data medium with electronically readable control signal can be provided, the electronically readable control signal can be with
Programmable computer system coordinates to perform approach described herein.
The realization can also use the form of the computer program product with program code, work as computer program product
When running on computers, program code is operated to perform this method.Can in machine-readable carrier storage program generation
Code.
Described above be only it is illustrative, and it is to be understood that it is described herein arrangement and details modification and
Change will be apparent to those skilled in the art.It is therefore intended that only by scope of the following claims rather than by
The specific detail that is presented is limited above description and by way of explaining.
Claims (8)
1. a kind of be used for the device that PCH ME debug and USB port are multiplexed in Purley Platform Server systems, its feature exists
In including PCH, alternative selector, USB, BMC, wherein PCH are connected with alternative selector, and alternative selector connects with USB
Connect, transmitted I2C signals or USB2.0 signals between PCH and USB by alternative selector, BMC is selected with alternative
Device connection is selected, USB port function is controlled by controlling alternative selector.
2. according to claim 1 be used for PCH ME debug and USB port multiplexings in Purley Platform Server systems
Device, wherein：The speed that alternative selector is supported meets USB2.0 and I2C semaphore requests.
3. according to claim 2 be used for PCH ME debug and USB port multiplexings in Purley Platform Server systems
Device, wherein：BMC selects pin state by changing alternative selector function, to control USB port function.
4. according to claim 3 be used for PCH ME debug and USB port multiplexings in Purley Platform Server systems
Device, wherein：Alternative selector is made up of the first alternative selector MUX1 and the second alternative selector MUX2, and first
Alternative selector MUX1 input A is connected by I2C buses and PCH HOST_I2C_CLK interfaces, transmission I2C_CLK letters
Number, the first alternative selector MUX1 input B is connected by USB USBs and PCH USB_DP interfaces, transmission
USB_DP signals, the second alternative selector MUX2 input A is connected by I2C buses and PCH HOST_I2C_DATA interfaces
Connect, transmit I2C_DATA signals, the second alternative selector MUX2 input B passes through USB USBs and PCH
USB_DN interfaces are connected, and transmit USB_DN signals, the first alternative selector MUX1 and the second alternative selector MUX2 control
End S processed connects BMC GPIO interface respectively, and to receive the selection control signal that BMC is sent, the first alternative selector MUX1's is defeated
Go out to hold Y-direction USB to transmit I2C_CLK or USB_DP signals, the second alternative selector MUX2 output end Y-direction USB transmission I2C_
DATA or USB_DN signals.
5. according to claim 4 be used for PCH ME debug and USB port multiplexings in Purley Platform Server systems
Device, wherein：For the device acquiescences being multiplexed of PCH ME debug and USB port in Purley Platform Server systems
Function is USB2.0, when debug ME are needed, and changes the state that function selects pin by BMC, realizes cutting for signal
Change.
6. a kind of method that PCH ME debug and USB port are multiplexed in Purley Platform Servers system, it is characterised in that
Comprise the following steps：
SS1：Increase alternative selector between PCH and USB, by alternative selector by I2C signals or the signals of USB 2.0
Transmitted between PCH and USB；
SS2：BMC selects pin state by changing alternative selector function, to control USB port function.
7. the side that PCH ME debug and USB port are multiplexed in Purley Platform Servers system according to claim 6
Method, wherein：The speed that alternative selector is supported will meet the requirement of USB2.0 and I2C signals.
8. the side that PCH ME debug and USB port are multiplexed in Purley Platform Servers system according to claim 6
Method, wherein：The function of acquiescence is USB2.0, when debug ME are needed, and the state that function selects pin is changed by BMC,
Realize the switching of signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710267074.5A CN107145213B (en) | 2017-04-21 | 2017-04-21 | Device and method for multiplexing PCH MEdebug and USB port |
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| CN201710267074.5A CN107145213B (en) | 2017-04-21 | 2017-04-21 | Device and method for multiplexing PCH MEdebug and USB port |
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| CN107145213B CN107145213B (en) | 2020-05-19 |
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Cited By (2)
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| CN113778924A (en) * | 2021-09-03 | 2021-12-10 | 深圳市同泰怡信息技术有限公司 | Large-scale computer debugging method, system and equipment based on baseboard management controller |
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| CN107145213B (en) | 2020-05-19 |
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